Merge commit 'v2.6.34-rc6' into core/locking

1 files changed, 65 insertions, 30 deletions

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index f771a6c08777..743038490104 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -35,6 +35,7 @@
 #include <linux/if_ether.h>
 #include <linux/ethtool.h>
 #include <linux/sched.h>
+#include <linux/slab.h>
 
 #include "igb.h"
 
@@ -234,6 +235,24 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	return 0;
 }
 
+static u32 igb_get_link(struct net_device *netdev)
+{
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_mac_info *mac = &adapter->hw.mac;
+
+	/*
+	 * If the link is not reported up to netdev, interrupts are disabled,
+	 * and so the physical link state may have changed since we last
+	 * looked. Set get_link_status to make sure that the true link
+	 * state is interrogated, rather than pulling a cached and possibly
+	 * stale link state from the driver.
+	 */
+	if (!netif_carrier_ok(netdev))
+		mac->get_link_status = 1;
+
+	return igb_has_link(adapter);
+}
+
 static void igb_get_pauseparam(struct net_device *netdev,
 			       struct ethtool_pauseparam *pause)
 {
@@ -296,7 +315,7 @@ static int igb_set_pauseparam(struct net_device *netdev,
 static u32 igb_get_rx_csum(struct net_device *netdev)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
-	return !!(adapter->rx_ring[0].flags & IGB_RING_FLAG_RX_CSUM);
+	return !!(adapter->rx_ring[0]->flags & IGB_RING_FLAG_RX_CSUM);
 }
 
 static int igb_set_rx_csum(struct net_device *netdev, u32 data)
@@ -306,9 +325,9 @@ static int igb_set_rx_csum(struct net_device *netdev, u32 data)
 
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		if (data)
-			adapter->rx_ring[i].flags |= IGB_RING_FLAG_RX_CSUM;
+			adapter->rx_ring[i]->flags |= IGB_RING_FLAG_RX_CSUM;
 		else
-			adapter->rx_ring[i].flags &= ~IGB_RING_FLAG_RX_CSUM;
+			adapter->rx_ring[i]->flags &= ~IGB_RING_FLAG_RX_CSUM;
 	}
 
 	return 0;
@@ -771,9 +790,9 @@ static int igb_set_ringparam(struct net_device *netdev,
 
 	if (!netif_running(adapter->netdev)) {
 		for (i = 0; i < adapter->num_tx_queues; i++)
-			adapter->tx_ring[i].count = new_tx_count;
+			adapter->tx_ring[i]->count = new_tx_count;
 		for (i = 0; i < adapter->num_rx_queues; i++)
-			adapter->rx_ring[i].count = new_rx_count;
+			adapter->rx_ring[i]->count = new_rx_count;
 		adapter->tx_ring_count = new_tx_count;
 		adapter->rx_ring_count = new_rx_count;
 		goto clear_reset;
@@ -797,10 +816,10 @@ static int igb_set_ringparam(struct net_device *netdev,
 	 * to the tx and rx ring structs.
 	 */
 	if (new_tx_count != adapter->tx_ring_count) {
-		memcpy(temp_ring, adapter->tx_ring,
-		       adapter->num_tx_queues * sizeof(struct igb_ring));
-
 		for (i = 0; i < adapter->num_tx_queues; i++) {
+			memcpy(&temp_ring[i], adapter->tx_ring[i],
+			       sizeof(struct igb_ring));
+
 			temp_ring[i].count = new_tx_count;
 			err = igb_setup_tx_resources(&temp_ring[i]);
 			if (err) {
@@ -812,20 +831,21 @@ static int igb_set_ringparam(struct net_device *netdev,
 			}
 		}
 
-		for (i = 0; i < adapter->num_tx_queues; i++)
-			igb_free_tx_resources(&adapter->tx_ring[i]);
+		for (i = 0; i < adapter->num_tx_queues; i++) {
+			igb_free_tx_resources(adapter->tx_ring[i]);
 
-		memcpy(adapter->tx_ring, temp_ring,
-		       adapter->num_tx_queues * sizeof(struct igb_ring));
+			memcpy(adapter->tx_ring[i], &temp_ring[i],
+			       sizeof(struct igb_ring));
+		}
 
 		adapter->tx_ring_count = new_tx_count;
 	}
 
-	if (new_rx_count != adapter->rx_ring->count) {
-		memcpy(temp_ring, adapter->rx_ring,
-		       adapter->num_rx_queues * sizeof(struct igb_ring));
-
+	if (new_rx_count != adapter->rx_ring_count) {
 		for (i = 0; i < adapter->num_rx_queues; i++) {
+			memcpy(&temp_ring[i], adapter->rx_ring[i],
+			       sizeof(struct igb_ring));
+
 			temp_ring[i].count = new_rx_count;
 			err = igb_setup_rx_resources(&temp_ring[i]);
 			if (err) {
@@ -838,11 +858,12 @@ static int igb_set_ringparam(struct net_device *netdev,
 
 		}
 
-		for (i = 0; i < adapter->num_rx_queues; i++)
-			igb_free_rx_resources(&adapter->rx_ring[i]);
+		for (i = 0; i < adapter->num_rx_queues; i++) {
+			igb_free_rx_resources(adapter->rx_ring[i]);
 
-		memcpy(adapter->rx_ring, temp_ring,
-		       adapter->num_rx_queues * sizeof(struct igb_ring));
+			memcpy(adapter->rx_ring[i], &temp_ring[i],
+			       sizeof(struct igb_ring));
+		}
 
 		adapter->rx_ring_count = new_rx_count;
 	}
@@ -1704,6 +1725,9 @@ static void igb_diag_test(struct net_device *netdev,
 
 		dev_info(&adapter->pdev->dev, "offline testing starting\n");
 
+		/* power up link for link test */
+		igb_power_up_link(adapter);
+
 		/* Link test performed before hardware reset so autoneg doesn't
 		 * interfere with test result */
 		if (igb_link_test(adapter, &data[4]))
@@ -1727,6 +1751,8 @@ static void igb_diag_test(struct net_device *netdev,
 			eth_test->flags |= ETH_TEST_FL_FAILED;
 
 		igb_reset(adapter);
+		/* power up link for loopback test */
+		igb_power_up_link(adapter);
 		if (igb_loopback_test(adapter, &data[3]))
 			eth_test->flags |= ETH_TEST_FL_FAILED;
 
@@ -1745,9 +1771,14 @@ static void igb_diag_test(struct net_device *netdev,
 			dev_open(netdev);
 	} else {
 		dev_info(&adapter->pdev->dev, "online testing starting\n");
-		/* Online tests */
-		if (igb_link_test(adapter, &data[4]))
-			eth_test->flags |= ETH_TEST_FL_FAILED;
+
+		/* PHY is powered down when interface is down */
+		if (!netif_carrier_ok(netdev)) {
+			data[4] = 0;
+		} else {
+			if (igb_link_test(adapter, &data[4]))
+				eth_test->flags |= ETH_TEST_FL_FAILED;
+		}
 
 		/* Online tests aren't run; pass by default */
 		data[0] = 0;
@@ -1783,6 +1814,7 @@ static int igb_wol_exclusion(struct igb_adapter *adapter,
 		retval = 0;
 		break;
 	case E1000_DEV_ID_82576_QUAD_COPPER:
+	case E1000_DEV_ID_82576_QUAD_COPPER_ET2:
 		/* quad port adapters only support WoL on port A */
 		if (!(adapter->flags & IGB_FLAG_QUAD_PORT_A)) {
 			wol->supported = 0;
@@ -1812,7 +1844,8 @@ static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
 	wol->supported = WAKE_UCAST | WAKE_MCAST |
-			 WAKE_BCAST | WAKE_MAGIC;
+	                 WAKE_BCAST | WAKE_MAGIC |
+	                 WAKE_PHY;
 	wol->wolopts = 0;
 
 	/* this function will set ->supported = 0 and return 1 if wol is not
@@ -1835,15 +1868,15 @@ static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 		wol->wolopts |= WAKE_BCAST;
 	if (adapter->wol & E1000_WUFC_MAG)
 		wol->wolopts |= WAKE_MAGIC;
-
-	return;
+	if (adapter->wol & E1000_WUFC_LNKC)
+		wol->wolopts |= WAKE_PHY;
 }
 
 static int igb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
-	if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
+	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE))
 		return -EOPNOTSUPP;
 
 	if (igb_wol_exclusion(adapter, wol) ||
@@ -1861,6 +1894,8 @@ static int igb_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 		adapter->wol |= E1000_WUFC_BC;
 	if (wol->wolopts & WAKE_MAGIC)
 		adapter->wol |= E1000_WUFC_MAG;
+	if (wol->wolopts & WAKE_PHY)
+		adapter->wol |= E1000_WUFC_LNKC;
 	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 
 	return 0;
@@ -2005,12 +2040,12 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}
 	for (j = 0; j < adapter->num_tx_queues; j++) {
-		queue_stat = (u64 *)&adapter->tx_ring[j].tx_stats;
+		queue_stat = (u64 *)&adapter->tx_ring[j]->tx_stats;
 		for (k = 0; k < IGB_TX_QUEUE_STATS_LEN; k++, i++)
 			data[i] = queue_stat[k];
 	}
 	for (j = 0; j < adapter->num_rx_queues; j++) {
-		queue_stat = (u64 *)&adapter->rx_ring[j].rx_stats;
+		queue_stat = (u64 *)&adapter->rx_ring[j]->rx_stats;
 		for (k = 0; k < IGB_RX_QUEUE_STATS_LEN; k++, i++)
 			data[i] = queue_stat[k];
 	}
@@ -2074,7 +2109,7 @@ static const struct ethtool_ops igb_ethtool_ops = {
 	.get_msglevel           = igb_get_msglevel,
 	.set_msglevel           = igb_set_msglevel,
 	.nway_reset             = igb_nway_reset,
-	.get_link               = ethtool_op_get_link,
+	.get_link               = igb_get_link,
 	.get_eeprom_len         = igb_get_eeprom_len,
 	.get_eeprom             = igb_get_eeprom,
 	.set_eeprom             = igb_set_eeprom,